Flux Cored Welding Wire, Process Flux-Cored Welding (FCAW), Material Carbon Steel, Wire Diameter 0.045 in, Tensile Strength (As Welded) 86 ksi (100 Percent Carbon Dioxide), 84 ksi (Stress-Relieved 1 hr @ 1150 Degrees F), Yield Strength (Minimum Required) 58 ksi, Yield Strength (As Welded) 78 ksi (100 Percent Carbon Dioxide), 72 ksi (Stress-Relieved 1 hr @ 1150 Degrees F), Spool Type Fiber Spool, Series UltraCore HD-12C, Weight 33 lb, For Material Type Carbon Steel to Carbon Steel